Abstract
Material properties are assumed to be random parameters, interval
parameters and fuzzy parameters. If the variation range is large, they are not assumed
to be constants. Two improved methods of the random field are developed. The
midpoint method, local average method, interpolation method and improved
interpolation method of interval field are addressed. The midpoint method, local
average method, interpolation method and improved interpolation method of the
fuzzy field are presented. The calculation method of mixed field is discussed and the
calculation formula is proposed.
Keywords: Stochastic field, interval field, Fuzzy field, mixed field, The midpoint method, Local average method, Interpolation method, Improved interpolation method.
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